traits

If a trait is genetic in nature, is it possible that it cannot be passed to future generations. To put it another way, if you discover that incidence of a particular condition is no more common among children of people who have that condition than among children drawn from the general...

IF a person is given a free theme, to draw whatever he wants... would a psychologist be able to analyze this drawing and describe personality traits? I know graphology is bunk. So is Rorschach. But what about drawings? Is there any scientifical basis for that kind of analysis? A friend of mine...